Ventilator



J. F. LILLY June 5, 1951 VENTILATOR Filed Sept. 14, 1946 P |||||ll l arkj James F L z Qy INVENTOR.

Patented June 5, 1951 UNITED STATESFATENT OFFICE VENTILATOR James F.Lilly; Portland, Oreg.

Application September 14, 19 36, Serial No. 697,100

1 Claim. 1

This invention relates to improvements in ventilators for dwellings,buildings, and structures of all kinds wherein it is desirable ornecessary to provide controlled ventilation or the passage of airtherethrogh.

One of the principal objects of the invention is the provision of aventilator which is of simple, efficient, durable, and inexpensiveconstruction, which may be conveniently installed with a minimum amountof labor through the well of a building and preferably below a sill of awindow.

A further object is the provision of a balanced closure means which maybe adjusted into a variety of positions for regulating the passage ofair through the ventilator.

A still further object is the provision of a novel method of weatherstripping throughout the perative range of said closure means.

These and other objects will appear as my invention is more fullyhereinafter described in the following specification, illustrated in theac companying drawing and finally pointed out in the appended claim.

In the drawing:

Figure 1 is a front elevation of a ventilator made in accordance with minvention and with a fragment broken away for convenience ofillustration.

Figure 2 is a sectional view taken approximately along the line 2-2 ofFigure 1.

Referring now more particularly to the drawing.

Reference numeral 1 indicates generally a frame having side walls 2 and3, top and bottom walls 4, and 5, respectively, and a partial front Kwall 5A. The top wall 4 may constitute an entire window sill or asection thereo, and so designed or shaped to match the remainingsections or portions thereof. The ventilator in its entirety isinstalled beneath a window by forming an opening through the wall of thesame size as that of the frame. The opening and frame may extendentirely to the floor or to any desired depth below the window. As shownin Figure 1, the invention is viewed from the exterior of the wall towhich it is applied. To the side walls 2 and 3 of the frame, I secure aplurality of outwardly louvres 6 in fixed spaced relation to each otheras shown. To the interior of the frame and directly behind the louvres,I mount a screen 1 by means of a frame 8. Spaced apart from the screenand also secured to the interior of the frame i, is a frame 9 made ofweather-stripping material of channel form and extending entirely aroundthe interior of the frame. Slidably mounted within the frame 5 is aclosure panel Hi adapted for slidable movement in a vertical planewithin the channel frame The upper edge of the panel is provided withany approved type of handle or hand grip H for convenience in raising orlowering the panel into any desired position to regulate the passage ofair through the louvres and through the opening between the top of thefront wall 5A and the top wall or sill 4.

In order that the panel H) may resist the force of gravity and remain inany of its adjusted positions, I provide a balance in the form of a coilspring l2 mounted within a housing It, carried by the side walls 2 and 3of the frame I. The outermost end of the spring may be attached to theupper edge of the panel H! by any suitable means, or I may secure oneend of a tape to the panel and its opposite and to the outermost end ofthe spring.

To prevent any leakage of air between the front wall 5A and the closurepanel Hi, I provide weather stripping i4 along'the bottom edge of thepanel and also as at 55 along the top edge of the front wall. Theweather stripping I5 is always in wiping contact with the panel and thaton the panel is in like contact with the inner surface of the front wall5A. When the panel is moved into its uppermost position the two weatherstrippings engage with each other.

While I have shown a particular form of embodiment of my invention, I amaware that many minor changes therein will. readily suggest themselvesto others skilled in the art without departing from the spirit and scopeof the invention. Having thus described the invention: what I claim asnew and desire to protect by Letters Patent is:

A ventilator adapted to be installed in an opening in the wall of abuilding, said ventilator consisting of a frame having vertical sidewalls, a vertical partial front wall, a bottom wall and a top wall, aplurality of downwardly inclined horizontal louvers fixedly mountedwithin the frame in spaced relation to each other, a screen mountedwithin the frame between the louvers and said partial front wall, asecond vertical partial front wall slidably mounted within the frame andadapted to close the opening between the top of said first mentionedpartial front wall and the top of said frame, means carried by the frameand attached to said second partial wall for arresting its movement inany location between said opened and closed positions, said meanscomprising a pair of coil springs attached at one of their ends to saidsecond partial front wall and at their opposite ends to said frame, astrip of weather stripping of channel formation in cross section securedacross the bottom end of said slidable partial front wall and having oneof its sides in wiping contact with the inner surface of said firstmentioned partial front wall, a companion strip of weather strippingsecured across the top end of said first mentioned partial front walland having one of its sides in wiping contact with the outer surface ofsaid slidable partial front wall, and both of said strips of weatherstripping being adapted for engagement with each other when saidslidable partial .front wall is moved vertically into a closed position.

JAMES F. LILLY.

REFERENCES CITED The following references are of record in the file ofthis patent:

Number Great Britain Apr. 26, 1923

